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  Date: 2024/9/18
  Time: 11:03
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>session内置对象计数器</title>
    <style type="text/css">
        h1{color: red;text-align: center;size: 7px}
        p{color: green;text-align: center;size: 5px}
    </style>
</head>
<body>
    <%!int Num = 0;%>
    <%
        if (session.isNew()){
            Num += 1;
            session.setAttribute("Num","Num");//将Num变量值存入session
        }
    %>
    <h1>session计数器</h1>
    <br>
    <p>
        您是第
        <%=session.getAttribute("Num")%>
        个访问本网站的用户
    </p>
</body>
</html>
